I first read Do Over many years ago - back in maybe 2012 or 2013, I think. It is one of my all-time favorite online novels. I don't want to say why because I do not want to spoil the surprises to come for those who are reading it for the first time now.
One of my favorite plays is Thornton Wilder's "Our Town". In Our Town, a character gets to go back and observe only the events of a day in her childhood. It is so painful for that character to see herself as a child and how she didn't really appreciate life then.
In Our Town the character could only observe. In Do Over, Davey has the chance to change his life...
For me, this is a powerful novel worth reading again.